A nurse is reinforcing dietary teaching with a client who has constipation about appropriate food choices. Which of the following food selections by the client demonstrates an understanding of the teaching?

A. Cottage cheese is a dairy product that is not particularly high in fiber and might not effectively help with constipation. B. Puffed rice cereal is often low in fiber and might not be the best choice to address constipation. C. While tomato juice can have some benefits, it is not a high-fiber choice to help alleviate constipation. D. Correct. Bran muffins are a good source of dietary fiber, which can help promote regular bowel movements and relieve constipation.